Fix #1216 - Suppress trailing whitespace warings for ansible-lint when the option is set

ale_linters/ansible/ansible_lint.vim

@@ -21,7 +21,7 @@ function! ale_linters#ansible#ansible_lint#Handle(buffer, lines) abort
     for l:match in ale#util#GetMatches(a:lines, l:pattern)
         let l:code = l:match[4]
 
-        if l:code is# 'EANSIBLE002'
+        if l:code is# 'EANSIBLE0002'
         \&& !ale#Var(a:buffer, 'warn_about_trailing_whitespace')
             " Skip warnings for trailing whitespace if the option is off.
             continue

test/handler/test_ansible_lint_handler.vader

@@ -2,7 +2,11 @@ Before:
   runtime ale_linters/ansible/ansible_lint.vim
   call ale#test#SetFilename('main.yml')
 
+  let b:ale_warn_about_trailing_whitespace = 1
+
 After:
+  unlet! b:ale_warn_about_trailing_whitespace
+
   call ale#linter#Reset()
 
 Execute(The ansible-lint handler should handle basic errors):
@@ -20,6 +24,16 @@ Execute(The ansible-lint handler should handle basic errors):
   \ fnamemodify(tempname(), ':h') . '/main.yml:35: [EANSIBLE0002] Trailing whitespace',
   \ ])
 
+Execute(The ansible-lint handler should supress trailing whitespace output when the option is used):
+  let b:ale_warn_about_trailing_whitespace = 0
+
+  AssertEqual
+  \ [
+  \ ],
+  \ ale_linters#ansible#ansible_lint#Handle(bufnr(''), [
+  \ fnamemodify(tempname(), ':h') . '/main.yml:35: [EANSIBLE0002] Trailing whitespace',
+  \ ])
+
 Execute (The ansible-lint handler should handle names with spaces):
   AssertEqual
   \ [